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Acquire and cache opt-in executor capability inventories via V2 (#53736)

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## What changed

- Add the disabled-by-default `executor_capability_discovery_v2` feature to acquire `capabilities/discoverV2` inventories from supporting remote executors using each selected environment's working directory and sandbox.
- Share snapshots with MCP and world-state contributors and skill providers without activating discovered plugins or publishing discovered skills to the model.
- Cache inventories by environment instance, executor session, working directory, and sandbox. Coalesce concurrent requests, refresh the cache at turn start, retry transient failures, and refresh MCP projections after recovery.
- Resolve the system skills root in the executor and pass it explicitly to capability location discovery.

## Testing

Add coverage for feature gating, unsupported executors, inert inventories, cache reuse and eviction, turn refreshes, failure recovery, executor replacement, and system skill locations.

GitOrigin-RevId: 1bdca28fa7f17622b27e2713ab3dcc0c13426889
This commit is contained in:
Anthony Tafoya
2026-10-13 18:15:50 +00:00
committed by copyberry
parent 4d82d36ccf
commit cf0ed4c600
39 changed files with 1027 additions and 12 deletions
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codex-rs/core/src/thread_manager_tests.rs
+3
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@@ -1779,6 +1779,7 @@ async fn start_thread_seeds_extension_data_for_mcp_and_lifecycle_contributors()
},
/*ready_selected_capability_roots*/ &[],
/*executor_capability_discovery*/ None,
/*executor_capability_discovery_v2*/ None,
)
.await;
let second_session = &second_thread.thread.session;
@@ -1801,6 +1802,7 @@ async fn start_thread_seeds_extension_data_for_mcp_and_lifecycle_contributors()
},
/*ready_selected_capability_roots*/ &[],
/*executor_capability_discovery*/ None,
/*executor_capability_discovery_v2*/ None,
)
.await;
@@ -1917,6 +1919,7 @@ async fn start_thread_seeds_extension_data_for_mcp_and_lifecycle_contributors()
},
/*ready_selected_capability_roots*/ &[],
/*executor_capability_discovery*/ None,
/*executor_capability_discovery_v2*/ None,
)
.await;
assert_eq!(